Claims
- 1. A method to minimize the maintenance of heating equipment and cooling equipment, due to seasonal periods of non use, comprising the steps of:
- (a) connecting to said equipment a timing device with a capability to turn said equipment on for an on time interval and off for an off time interval;
- (b) programming said timing device for said on and off time intervals, such that said on time interval is very small compared to said off time interval; and,
- (c) turning said equipment on and off in sequence according to said programmed time intervals; comprising the steps of:
- (i) directing a first pulse stream to an electronic divider through a gate means during said off time interval;
- (ii) directing a second pulse stream to said electronic divider through a gate means during said on time interval; and,
- (iii) connecting the output of said electronic divider to an electronic circuit that can turn said equipment on and turn said equipment off.
- 2. The method according to claim 1 wherein the step of connecting the timing device with the capability to turn said equipment on and off whereby the equipment can conduct DC current or can conduct AC current includes the steps of:
- (a) sending a high frequency set of pulses to a silicon controlled rectifier to conduct electricity during the negative half cycle of a sine wave; and,
- (b) sending a high frequency set of pulses to a field effect transistor to conduct electricity during the positive half cycle of a sine wave or to conduct direct current electricity.
- 3. The method according to claim 1 wherein the step of connecting the timing device with the capability to turn said equipment on and off further comprises the steps of:
- (a) providing a high frequency set of pulses that allow said field effect transistor to turn off for brief periods of time during the positive half cycle of a sine wave or when conducting DC current; and,
- (b) charging an energy storage device during the time period when said field effect transistor is turned off such that said energy storage device can maintain the electronics of said timing device to continue to operate during said on time interval.
- 4. The method according to claim 1 wherein the step of programming the timing device for said on and off time intervals includes the steps of programming a first timer for a specific period of time to turn on said equipment and programming a second timer for a specific period of time to turn off said equipment.
FIELD OF THE INVENTION
This is a continuation of application Ser. No. 08/073,323 filed Jun. 7, 1993 now abandoned which is a division of Ser. No. 07/797,119, Filed 1991 Nov. 22. The invention is related to the field of preventative maintenance. Although not limited to, the invention is particularly useful when used with a heating or cooling system. Such systems typically require maintenance before or during the time they are re-initiated for the heating or cooling season.
US Referenced Citations (6)
Foreign Referenced Citations (1)
Number |
Date |
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62-29691 |
Sep 1988 |
JPX |
Divisions (1)
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Number |
Date |
Country |
Parent |
797119 |
Nov 1991 |
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Continuations (1)
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Number |
Date |
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Parent |
73323 |
Jun 1993 |
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